JP2761354B2 - Container lid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid attached to an opening of a container for storing semiconductor high-purity chemicals and general chemicals.

[0002]

2. Description of the Related Art Generally, semiconductor high-purity chemicals and general chemicals are stored in containers that can sufficiently withstand these chemicals. Conventionally, this kind of chemical has been filled in the container at a production factory, and is carried out with a lid fitted into an opening formed in the container. And when using the liquid stored in this container, as shown in FIG.
The lids fitted into the openings 1a, 1a of the container 1 are removed, and a lid 3 to which the conduit 2 is connected and a lid 4 without the conduit 2 are attached, respectively, as shown in FIG. One end of the adapter 6 is screwed into the screw portion 5 formed on the body 3, 4, and further, a ready-made plug 7 is connected to the other end of the adapter 6, and the hose 9 is connected to the plug 7 via the adapter 8. With the socket 10 connected to
The liquid in the container 1 was sent out to the hose 9 connected to the lid 3 via the pipe 2 by the pump P. At this time, clean air was taken in from the hose 9 connected to the opening 1a on the other side so that the inside of the container 1 did not become negative pressure. In FIG. 5, reference numeral 11 denotes an O-ring for sealing the lids 3, 4 and the openings 1a, 1a of the container 1.

[0003]

By the way, in the above-mentioned connection method, a plurality of connection parts must be used for the connection part, and therefore, the connection work requires a great deal of labor and time. It took time. In addition, since there are many connection points, there is a high risk of liquid leakage, and furthermore, the plug 7 attached to the container 1 protrudes from the outer periphery of the container 1 and becomes incompatible with export standards (UL standards). was there. Further, there is no danger that the connection portion may be hooked to damage the connection portion, or the container 1 may be turned over and the stored liquid may flow out.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a lid for a container which can be connected and disconnected very easily and safely and which is free from obstruction due to protrusion from the container. I have.

[0005]

In order to achieve the above object, a container lid according to claim 1 connects a hose to an opening formed in a container for storing high-purity chemicals and general chemicals. For the container, from the top of the container
Also, a plug portion to which a socket to which the hose is connected is provided integrally with a lid body attached to the opening formed on the lower side, and the plug portion is formed in a cylindrical shape.
Main body having a fluid passage formed therein, and
The main cylinder is provided so as to be slidable by the socket.
A valve that is pushed toward the rear end of the body
Urging means for urging the main cylinder toward the distal end, and the main cylinder
Formed at the tip of the body and urged by the urging means
And a valve seat with which the fluid passage is closed by
Said valve is provided by connecting said socket.
The fluid passage is opened against the urging force of the urging means, and the fluid passage is opened.
The plug portion has a tip portion that is the lid
The lid body is located below the top of the
When attached to the mouth, it is positioned below the top of this container.
It is characterized by being placed.

Further, the lid of the container according to the second aspect is characterized in that:
Item 2. The lid of the container according to Item 1, wherein the upper surface side of the lid main body is concave.
A portion is formed, and the plug portion extends upward from the bottom of the concave portion.
It is characterized by being protruded in the direction.

[0007]

According to the container lid of the first aspect, the container is connected to the hose by attaching the lid body to the opening of the container and connecting the socket to the plug provided on the lid body. Is performed , and at this time, the socket
Therefore, the valve moves toward the rear end against the urging force of the urging means.
When pressed, the fluid passage of the main cylinder is opened. In addition,
The tip of the container is located below the top of the container
Located below the top surface of the lid body attached to the opening
That the tip of this plug protrudes.
Is prevented. Further, the container according to claim 2
According to the lid, the connection between the plug and the socket can be released.
The hose from the connection point between the plug and the socket
When the liquid remaining in
In the recess formed on the top side of the lid body
Is done.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a container lid according to the present invention. In FIG. 1, reference numeral 21 is a lid main body. A concave portion 22 is formed on the upper surface side of the lid main body 21, and a plug portion 23 protruding upward from a bottom portion 22 a constituting the concave portion 22 is integrally provided at the center of the concave portion 22. . Also, on the lower surface side of the lid body 21,
A female thread 24 to which the pipe 2 is screwed is formed, and the pipe 2 is screwed into the female thread 24 and connected thereto.

Next, the configuration and structure of the plug portion 23 will be described. Reference numeral 25 denotes a main cylindrical body in which the fluid passage 26 is formed, and the tip portion 70 is located below the upper surface of the lid main body 21. A valve 27 to which an O-ring 28 is attached is slidably provided near the distal end of the main cylindrical body 25. The valve 27 has a rear end portion that is larger than the O-ring 28. On the side, valve 27
A flow path 31 communicating with the inside and the outside is formed.

A spring 32 is fitted into the rear end of the valve 27, and the spring 32 urges the valve 27 toward the distal end of the main cylinder 25, so that the valve 27 is located near the distal end of the valve 27. O-ring 28 provided
However, the fluid passage 26 is closed by contacting the valve seat 33 of the opening 26 a formed at the distal end of the main cylindrical body 25. Reference numeral 34 denotes the fluid passage 2 of the main cylinder 25.
6 is a stopper that is fitted into the stopper 6 and locks the spring 32. An annular locking groove 35 is formed on the outer peripheral surface of the main cylindrical body 25 so as to extend in the circumferential direction.
When the socket 10 is connected to the plug portion 23, a locking ball 59 to be described later is engaged with the locking groove 35.

Next, the structure and structure of the socket 10 connected to the plug 23 having the above structure will be described. Reference numeral 41
Is a main cylinder body in which a fluid passage 42 is formed. Inside the main cylinder body 41, a valve 43 is slidably provided. At the tip of the valve 43, a pressing projection 4
4 is formed, and the pressing protrusion 44 is
From the opening 42a. Also, the valve 43
An O-ring 45 is attached near the front end of the valve 43. On the rear end side of the O-ring 45, a valve 43 is provided.
A flow path 46 communicating with the inside and the outside is formed.

A spring 47 is fitted into the rear end of the valve 43. The spring 47 urges the valve 43 toward the distal end of the main cylinder 41, so that the valve 43 is located near the distal end of the valve 43. O-ring 45 provided
Is brought into contact with a valve seat 48 of an opening 42a formed at the distal end of the main cylindrical body 41 so that the fluid passage 42 is closed. Reference numeral 49 denotes the fluid passage 4 of the main cylinder 41.
2 is a stopper which is fitted into the stopper 2 and locks the spring 47. In addition, a concave portion 51 is provided on the tip end side of the main cylindrical body 41.
Are formed in the concave portion 51, and the plug portion 23
Of the main cylindrical body 25 is fitted. An O-ring 52 is fitted on the inner surface side of the concave portion 51,
When the main cylindrical body 25 of the plug portion 23 is fitted into the concave portion 51, the main cylindrical body 25 of the plug portion 23 is in close contact with the outer peripheral surface of the main cylindrical body 25,
The inner peripheral surface of the concave portion 51 and the outer peripheral surface of the main cylindrical body 25 of the plug portion 23 are sealed.

A sleeve 5 is provided on the outer periphery of the main cylinder 41.
3 is provided so as to be slidable, and a stopper ring 54 provided at the tip of the main cylinder 41 prevents the sleeve 53 from falling off from the tip of the main cylinder 41. A protrusion 55 is formed on the inner surface of the sleeve 53 in the vicinity of the distal end thereof.
A spring 57 is provided between the outer peripheral surface and the step 56 formed on the outer peripheral surface. And this spring 57
As a result, the sleeve 53 is constantly urged toward the distal end of the main cylinder 41.

A mortar-shaped hole 58 is formed in the vicinity of the distal end of the main cylinder 41 at intervals in the circumferential direction, and a locking ball 59 is provided in the hole 58. I have. Then, with the sleeve 53 moved toward the rear end of the main cylinder 41, the locking ball 59 is moved to the main cylinder 41.
When the sleeve 53 is moved toward the distal end by the urging force of the spring 57, the locking ball 5 is protruded by the projection 55 of the sleeve 53.
9 is pressed to the inner surface side, and a part thereof is maintained in a state of protruding from the concave portion 51. A female thread 61 is formed at the rear end of the main cylinder 41.
The adapter 8 to which the hose 9 is connected is screwed into the female screw portion 61.

In FIG. 2, reference numeral 62 denotes a container 1
Is a lid main body used when connecting the hose 9 for taking clean air into the container 1 to the other opening 1a, and has a female thread portion 24 to which the conduit 2 of the lid main body 21 is attached. Except for that, the structure is the same as that of the lid body 21 described above.

Next, using the container lid having the above structure, the container 1
The connection operation for connecting the hose 9 will be described with reference to FIG. First, the lid screwed into the opening 1a, 1a of the container 1 is removed, and the lid main body 21, 6 is inserted into the opening 1a, 1a.
2 is screwed and attached. The lid body 21
When attaching the pipe 2, the pipe 2 fixed to the lid body 21
Is screwed into the opening 1a and fixed. In this case, the end of the pipe 2 is
The lid body 21 is fixed to the opening 1a of the container 1 so as to be located near the bottom of the container 1. In this state, the adapter 8
The socket 10 to which the hose 9 is connected via is connected to the plug portion 23 of the lid main bodies 21 and 62. Here, when connecting the socket 10 to the plug portion 23, first, the sleeve 53 of the socket 10 is moved to the rear end side of the main cylinder 41.
The main cylinder 2 of the plug 23 is moved into the recess 51 of the socket 10 in this state.
5 is fitted.

In this state, when the movement of the sleeve 53 is released, the sleeve 53 is moved toward the distal end of the main cylinder 41 by the urging force of the spring 57, and the protrusion 55 formed on the inner surface side of the sleeve 53. As a result, the locking ball 59 is pressed inward, and a part of the locking ball 59 is projected into the concave portion 51, and engages with the locking groove 35 formed on the outer peripheral surface of the main cylindrical body 25 of the plug portion 23. A reliable connection between the socket and the socket 10 is ensured. In this way, the pressing projection 44 formed on the distal end of the valve 43 of the socket 10 abuts on the distal end of the valve 27 of the plug 23, and these valves 27 and 43 are pressed against each other, and the The main cylinders 25 and 41 are moved toward the rear end portions against the urging forces of 32 and 47.

Thus, the opening 2 of the main cylindrical body 25, 41
6a and 42a are respectively opened, and the fluid passages 26 and 42 of the main cylindrical bodies 25 and 41 are connected to the valves 27 and 4 respectively.
3 are in communication with each other via the flow paths 31 and 46 formed. As described above, each opening 1a of the container 1
When the pump P provided on one of the hoses 9 is driven in a state where the hose 9 is connected to the hose 9, the liquid in the container 1 is drawn into the hose 9 via the pipe 2. At this time, clean air is drawn into the container 1 from the other hose 9 and the negative pressure in the container 1 is eliminated.

Here, according to the lid of the container of the present embodiment, the socket 1 is inserted into the plug portion 23 formed on the lid main bodies 21 and 62.
0, the hose 9 can be connected to the opening 1a of the container 1, and the conventional connection method using a large number of connecting parts to connect the hose 9 to the opening 1a of the container 1. In comparison, the connection work can be greatly simplified. In addition, since the number of connection points can be significantly reduced, the risk of liquid leakage from the connection points can be reduced, and the height of the connection part protruding from the container 1 can be reduced. It is possible to reduce the hindrance of the work in the room or the like, and it is possible to prevent the connection portion from being broken by the connection portion during the work or to cause the liquid to leak due to the container 1 being overturned. Can be greatly improved.

Further, since the plug portion 23 is formed on the bottom portion 22a constituting the concave portion 22 formed on the upper surface side of the lid main bodies 21 and 62, for example, to remove the hose 9,
When the connection between the plug 23 and the socket 10 is released,
Since the liquid in the hose 9 that slightly flows out is transmitted through the plug portion 23 and accumulates in the concave portion 22, contamination and damage to the floor surface due to the liquid in the hose 9 that slightly flows out can be prevented. Further, since the tip portion 70 of the plug portion 23 provided integrally with the lid main bodies 21 and 62 is located below the upper surface position of the lid main bodies 21 and 62, the plug main bodies 21 and 62 are opened. Even when the plug portion 23 is attached to the portion 1a, the plug portion 23 does not protrude from the outer periphery of the container 1, so that the plug portion 23 can conform to the export standard (UL standard). In addition,
Plug part 2 provided on lid bodies 21 and 62 of the above embodiment
The specific configuration and structure of the socket 3 connected to the plug 3 and the plug 23 are not limited to the embodiment.

[0021]

As described above, according to the lid of the container of the present invention, the following effects can be obtained. Claim 1
According to the lid of the container described above, it is possible to connect the hose to the opening of the container simply by connecting the socket to the plug portion provided integrally with the lid body, and to connect the hose to the opening of the container. In addition, the connection operation can be greatly simplified as compared with the conventional connection method using a large number of connection parts. Further, since the number of connection points can be significantly reduced, the risk of liquid leakage from the connection points can be reduced. Moreover, simply connect the socket to the plug
To very easily bias the plug valve.
Against the rear end of the main cylinder against the urging force of the
Since the flow passage of the cylinder can be opened,
The workability of connecting the source can be further improved.
You. Furthermore, the tip of the plug part is higher than the top of the container.
The upper surface of the lid body attached to the opening located below
The plug part is located below the
Obstacles caused by protrusion, that is, non-compliance with the standard
Or during operation, hook the plug
Or the container may fall over, causing a liquid leak.
Can greatly improve safety.
Can be.

According to the container lid of the second aspect, the lid main body
The plug part is on the bottom part that constitutes the concave part formed on the top side of
Because it is formed, for example, to remove the hose,
Slight flow when the connection between the plug and socket is released
The liquid in the hose that comes out travels through the plug and accumulates in the recess.
The floor surface may be slightly
Pollution and damage can be prevented.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a lid body and a socket attached to a container for explaining the configuration and structure of a container lid according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a lid main body and a socket attached to the container for explaining the configuration and structure of the lid of the container according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of a lid body and a socket attached to the container, illustrating a connection state of a hose to the container with the lid of the container according to the embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of a container illustrating a connection state of a hose to the container.

FIG. 5 is an exploded side view of a connection portion for explaining a conventional connection structure of a hose to a container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 1a Opening 9 Hose 10 Socket 21, 62 Lid body 22 Recess 23 Plug part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B67D 5/54 B67D 47/28

Claims (2)

(57) [Claims] 1. A container lid for connecting a hose to an opening formed in a container for storing high-purity chemicals and general chemicals, wherein the lid is formed below an upper surface of the container. a lid body attached to the opening, the plug portion connectable socket the hose is connected, is provided integrally, it said plug portion mainly having a fluid passage formed in a cylindrical shape
The main body is slidably provided inside the main body.
The main cylinder is pressed toward the rear end by the socket.
And a valve attached to the distal end of the main cylinder.
Urging means for urging, formed at the tip of the main cylindrical body,
The valve urged by the urging means is brought into contact with the
A valve seat for closing a fluid passage, wherein the valve is connected to the socket and the biasing means is provided.
Is pressed against the urging force of the fluid passage, and the fluid passage is opened.
And the tip of the plug portion is located above the top surface of the lid body.
Is also located below, the lid body is attached to the opening of the container
Wherein the container lid is positioned below the upper surface of the container when the container is closed. 2. A recess is formed on the upper surface of the lid body.
And the plug portion projects upward from the bottom of the concave portion.
2. The container lid according to claim 1, wherein the container lid is provided.